While preparing to go to the beach with Marco and Tom, Star is called by Eclipsa, who reveals she got into a fight with Magic High Commission member Rhombulus, who created Globgor's crystal prison, to get him to undo the spell. Star attempts to get the two to peacefully reconcile, only for them to immediately start fighting again as soon as she turns her back on them. Eclipsa uses a spell that causes her and Rhombulus to switch bodies in order to undo Globgor's prison. However, Star convinces her to stop by pointing out that she will just prove herself the villain everyone claims her to be. Afterwards, Rhombulus angrily leaves, declaring he will never free Globgor, and Marco and Tom, seeing it is too late to go to the beach, make a kiddie pool cheer Star up.
After having skirmished with a number of dangerous monsters, Star Butterfly arrives on Earth to live with the Diaz family. However, rather than living a normal life, Star continues on having to battle villains both throughout the universe and in their high school, although if only to protect her extremely powerful wand, an object which she is still confused with.
Star vs. the Forces of Evil - Swim Suit Synopsis and Schedule